﻿#region Copyright information
// 
// Copyright © 2005-2013 Yongkee Cho. All rights reserved.
// 
// This code is a part of the Biological Object Library and governed under the terms of the
// GNU Lesser General  Public License (LGPL) version 2.1 which accompanies this distribution.
// For more information on the LGPL, please visit http://bol.codeplex.com/license.
// 
// - Filename: IClassifier.cs
// - Author: Yongkee Cho
// - Email: yongkeecho@gmail.com
// - Date Created: 2012-12-08 8:26 AM
// - Last Modified: 2013-01-25 3:59 PM
// 
#endregion
using System;
using System.Collections.Generic;
using BOL.Maths.Statistics;

namespace BOL.Algorithms.Classification
{
    public interface IClassifier<in TFeature, TClass>
    {
        TClass Classify(TFeature[] features);
        IEnumerable<TClass> Classify<TSource>(IEnumerable<TSource> sources, Func<TSource, TFeature[]> featuresSelector);
        ClassificationMeasures Classify<TSource>(IEnumerable<TSource> sources, Func<TSource, TClass> classSelector, Func<TSource, TFeature[]> featuresSelector, TClass trueValue);
    }

    public interface ILinearClassifier<TClass> : IClassifier<double, TClass>, IEquatable<ILinearClassifier<TClass>>
    {
        IDictionary<TClass, double[]> Weights { get; }
        int K { get; }
    }

    public interface INonLinearClassifier<TClass> : ILinearClassifier<TClass>, IEquatable<INonLinearClassifier<TClass>>
    {
        Func<double[], double[]> Convert { get; }
    }
}
